Adjustable spanner.



R. FLECK.

ADJUSTABLE SPANNER.

APPLICATION FILED AUG.19. 1914.

Patented Nov. 2, 1915.

3 SHEETSSHEET I.

W/TA/ESSES R. FLECK.

ADJUSTABLE SPANNER.

APPLICATION FILED AUG.I9. 1914.

Patented Nov. 2, 1915.

3 SHEETS-SHEET 2- W/ TNES SE5 0.. WASHINGTON. B1 c.

R. FLECK.

ADJUSTABLE SPANNER.

APPL |CAT|0N FILED AUG. 19. 1914.

Patented Nov. 2, 1915.

3 SHEETSSHEET 3.

W s M W W commnm I'LANOGRM'II COMWASHINGTUN. l). c.

s y, sfancth r @liCEo ROBERT FLECK, 0F CARIPQWAN, NEAR STEPPS, SCOTLAND,

nnJUsrnBLn SPANNER.

Specification of Letters Patent.

iatented Nov. 2, 1915.

hnplication filed August 19, 1914. Serial N 0. 857,441.

To all whom it concern:

Be it kn n h I Re ist im s, a shi of the K ng o G ea Br a n esi ng at h hu, h a -tspps, Lahark h re, Scotland, have invented certain new use,- ful ll npreven ents in Adjustable Spanners, f w h the ol owing s a p fic ti n- This invention relates to adjustable spanrs o the typ wh r n 0. 1 ia is sihis l in a handl Q b dy Partie hile th ether j m Wh ch. is m v b 0. adjusta le, s cu ted on o n' the h ndl or ho ly Le tish and, n b adju ted paralle w th this er iaw by a sdius inescrew which 91 e ess w h he mo a le 6r adju tabl Jew and Withths han l rsho ly noi t sh U der my in entio t slsiianner s c stitutsd by number of icts arrang d nd combined qgst sr b tantial y a hs s h ft r et orth; sm p ising a ha d membe er he y pa t and s mov'hbls msiehsr qr mh ah e P rt, he h ndle rh dy p rt ha ng a nrei st sn Q1 j w, bea ing sin-tee d a bilek er i m: jection, while the movable part has a pro; i t n jaw, s n iest qu or the p e e a shoulder and c ntact p rt, t e parts ein tained adjustahly s ns ie by screw or q i l nt mea s! the adjustm nt cf t p ts may he. fa ilitat d, i desired, by p g equi ale ea s a Th p ts may he erahe' d ts sense t e a sing e-ce spsnhs x h f esire yths chiplisa ie of ce i oi the Pa t double-ended spanner mav be constituted.

1 o der th t 11 aid vs tieh be p p y derstccd I have he t nts appended two explanatory sheets, of drawings h son var eus te m of my djusta l spanner are illustrated. I

In th d aw ngs f' gur s l and 9 hew Plan. iew an side V r sp ctiv ly, one r cf sin -ended spa n F 3 ano her p an i w f th e i pa n e e is a plan iew of chums-ended panner Fle 5 nd 6 on a p an n w (P y ction) a d id v sit, 198F90- inodified form of single: ded panners a si e View o hs dy or unde Pa t a, of the spanner ll sr te at igs- 6 M 1 and he 8 is asi e View f the pp par r smovahlsiew Fig. 9 is a plan view, partly in sectiQn, of

know pa ts 4 jection 7 which may be either another slightly modified construction of spanner.

On the drawings the same reference letters wherever repeated indicate the same or similar parts.

In carrying out my invention in the case of a, single-ended spanner, as illustrated at Figs. 1', 2 and 3 the body of the spanner comprises two parts one working on the other. The one part, which may be termed the handle member or body part a, is pro,- vided with a suitably shaped pro ection or jaw b, at one end, while the other part which may be termed the movable member or m0vable, part 0, can be moved on the body a and is likewise provided with a projection or jaw b at one end, the arrangement being such that the two projections orjaws Z), 6 work in conjunction with each other and form the head or gripping portion of the pan sn v The h ad or r pp P r n o the sp s ner is made with a suitable. bearing surface, rfac d, so t at th Part 01 0f t e rable part a when the latter is placed in position' on the body 0,, will be in sliding con: tact therewith and the distance between the projections or jaws 6, Z1}, can be varied when required by moving the movable member or movable part c in the desired direction.

When it is desired to decrease the distance tween th Pr j n ja s a pinching screw device such as illustrated, is P ef rably use hi de consi ts of n adjusting screw e Working in a block or rosu sd o 0 ad 9 ith t body a By Qr rst s the screw 5 in one direction oneend of said screw bears on a projection or toe piece 9 formed on the movable part 0 thereby causing it to slide over the body a until the desired size of opening between the projections er jaws b, 6 is obtained, whereupon e scann r an e sed is h O a ten e he t sca n r is i u nd pressure comes on the projection or jaw b y Wh n ci-"swin p. a n t e ush like, id pr ssure s ommu ate to th block or projection f through the shoulder h of the movable part a and the point of contact of e shoulder h w t block or p jec on of a radial movement I bscemss th cente which causes the part 0 to press angularly on the bearing surface (Z, and the shoulder h to press angularly on the block or projection f thereby preventing the slackening of the projections or jaws b, If. By operating the screw 6 in the other direction the end thereof is moved out of contactwith the projection or toe piece 9 on the movable part 0 so that said part can be readily moved or shiftedjto increase the size of opening between the projections or jaws b b This movement of the movable part 0 may be, as shown atFigs. 1, 2 and 3 and also Figs. at and 5 facilitated by means of a plate spring or its equivalent i one end of which is suitably secured to the projection or aw 7) while its other end bears on the side of the movable part 0. The arrangement of the spring or its equivalent 2', when used, is such, that, it normally. tends to push the movable part 0 into its extended position, as indicated in dotted lines at Fig. 3.

' The handle or body part a and the movable part c of the spanner can be retained in sliding contact with each other in any suitable manner." In Figs. 1, 2, 8 and 4 a slot jis made in the movable part 0, while, passingthrough the slot 7' is a screw or the like fitted in the handle or body part a. The head of the screw or the like 70 projects over the slot j in such manner as to hold the parts a, c, in contact while permitting the necessary sliding movement to take place. Ifdesired, the arrangement may be reversed, the slot being made in the body or under part a.

In Fig. 4 a double-ended spanner is illustrated, the arrangement of parts being similar to that of the spanner described with ref- 'erence to the preceding figures. It will be noted that one of the screws 6 requires to be reversed in order that it may operate in the required manner, as previously described.

In the modified constructlon of spanner illustrated at Figs. 5, 6, 7 and 8 the body part a is made of slotted formation at one end as indicated atom for the reception of the movable part 0 so that when the part c is inserted in the slotted portion m the two sides thereof form a guide for same. With thisarrangement when fitting the parts'to- 'gether, the movable part c is inserted in the slotted portion m and the block 7" carrying the screw '6 is thereafter placed in po sltlon and secured 1n place by means of a rivet, pin, or other suitable securing means n. The slotted portion m may be slightly enlarged at its inner end for the reception of the block 7.

If desired the block f, instead of being made separate and secured in place as in the arrangement illustrated at Figs. 5, 6, '7' and 8, may be formed integral with the body part a, in which case the construction of the spanner would preferably be as illustratedat Fig. 9. When fitting the parts to gether, the movable part c is inserted in-the slotted portion 'm, to a position as shown 1n dotted lines, andis thereafter turned down into the slot, the toe-piece g clearing the block or projection f and the part c assuming the correct position' shown in full lines.

A screw or pin it is then inserted in openings in the handle member so as to'pass through the slot 9' in the movable part. As

in the other arrangements, a spring may be used to facilitate the. movements of the part 0.

The parts constituting the body of the i 1. An adjustable spanner comprising a 7 V handle member and amovable member; a

jaw and a pressure block on the handle member forming bearing surfaces for the movable member which is ad'aptedto slide therebetween; ajaw and a toe-piece on the movable member; screw means adapted to" co-act with said pressure block and said toepiece; and a projection carried byone mem ber adapted to engage a slot in theother member for locking the parts in position;

2. An adjustable spanner comprising a body part and'a plurality of movable parts;

jaws and pressure blockson thebody part 1] forming bearing surfaces for the movable parts; a jaw and'a toe-piece on each movable part; screw means adapted to co-act with said" pressure blocks and said toe-f pieces; and means for locking theparts in 1 position.

3. An adjustable spanner comprising" handle member and a movablemember; a

jaw and a pressure block on the handlemember forming bearing surfaces for the movable member which is adapted to slide there-j between; a jaw and a toe-piece on the-movable members; screw means adapted to coactwithsaid pressure block and'said toepiece; a projection carried by one member adapted to engage a slot in. the 'other memher; and spring means for facilitating j movement of the movable member.

4. An adjustable spanner comprising a body part and a plurality of. movable parts;

aws and pressure blocks on the body part forming,bearing surfaces for the. movable. parts; a aw-and a toe-p ece on each'r'novable member; screw means adapted to coact with said pressure blocks and said toetion, and spring means for facilitating pieces; means for locking the parts in posihandle member having a jaw. formed integral therewith and a transverse slot extending through the member, .a movalolei memher having a j'aw'an'd a toe-piece formed integral' therewith adapted to slide in said member adapted to engage said toe-piece,

and a projection carried by one member adapted to engage a slot in the other mem- 6. An adjustable spanner comprising a handle member having a jaw formed integral therewith and a transverse slot extending through the member, a movable member having a jaw and a toe-piece formed integral therewith adapted to slide in said slot; screw means carried by the handle member adapted to engage said toe-piece, a projection carried by one member adapted to engage a slot in the other member, and spring means for facilitating movement of the movable member.

7. An adjustable spanner comprising a handle member having a jaw formed integral therewith and a transverse slot extend.- ing through the member, a pressure block secured in said slot, a movable member having a jaw and a toe-piece formed integral therewith adapted to slide in said slot screw means carried by the pressure block adapted to engage said toe-piece, and a projection carried by one member adapted to engage a slot in the other member.

8. An adjustable spanner comprising a handle member having a jaw formed integral therewith and a transverse slot extendlng through the member, a pressure block secured in said slot, a movable member having a jaw and a toe-piece formed integral therewith adapted to slide in said slot;

screw means carried by the pressure block adapted to engage said toe-piece, a projection carried by one member adapted to en gage a slot in the other member, and spring means for facilitating movement of the movable member.

In testimony whereof I aflix my signature in presence of two witnesses.

ROBERT FLECK.

Witnesses:

WILLIAM FLEMING, CEoIL G. GALL.

Copies of this patent maybe obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

